https://www.jpcorry.com/jp-corry-products/werner-trade-extension-ladder-double/
Werner Trade Extension Ladder Double
Description
This 722 Series double section extension ladder is made from high grade aluminium. With box section stiles designed to ensure the ladder is lightweight but strong, this ladder is a ideal for jobs around the work site. Features include manual thumb operated locking catches to prevent sections separating, slip resistant D-shaped rungs and feet for added safety during use. Approved to the latest EN131 standard. For Professional Use.
Datasheet :- extensionladder